Bicycle rear derailleur jockey pulley

Details Bicycle rear derailleur jockey pulley Bicycle rear derailleur jockey pulley

1996-09-06

1998-01-27

Schoeppel, Roger J.

Endless belt power transmission systems or components

Control for variable input to output speed-ratio

Including belt shiftable axially from one to another surface...

474 80, 474160, F16H 5900

Patent

active

057117314

ABSTRACT:
A bicycle rear derailleur jockey pulley assembly includes a cogwheel supported on a bearing. The bearing includes an outer ring supporting the cogwheel, an inner ring disposed radially inwardly of the outer ring, and a plurality of rolling members disposed between the inner ring and the outer ring. The outer ring is capable of movement relative to the inner ring in an axial direction so that the jockey pulley may follow the axial movement of the chain after shifting.

REFERENCES:
patent: 4433963 (1984-02-01), Shimano
patent: 4575365 (1986-03-01), Nagano
patent: 5350339 (1994-09-01), Carmichael
patent: 5466194 (1995-11-01), Steinberg et al.

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